From: Heiko Carstens <hca@linux.ibm.com>
To: Alexander Gordeev <agordeev@linux.ibm.com>,
Sven Schnelle <svens@linux.ibm.com>,
Vasily Gorbik <gor@linux.ibm.com>,
Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: linux-kernel@vger.kernel.org, linux-s390@vger.kernel.org
Subject: [PATCH 1/3] s390/probes: Fix wrong opcode for cgrb fixup
Date: Mon, 12 Oct 2026 10:36:27 +0200 [thread overview]
Message-ID: <20261012083629.2109206-2-hca@linux.ibm.com> (raw)
In-Reply-To: <20261012083629.2109206-1-hca@linux.ibm.com>
The last byte of the cgrb instruction is 0xe4, however the probes code
compares against 0xe6. Fix it.
Fixes: 6b169ac9b434 ("s390/kprobes: add support for compare and branch instructions")
Cc: stable@vger.kernel.org
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
---
arch/s390/lib/probes.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/s390/lib/probes.c b/arch/s390/lib/probes.c
index 1e184a03442d..049300b68ddd 100644
--- a/arch/s390/lib/probes.c
+++ b/arch/s390/lib/probes.c
@@ -99,8 +99,8 @@ int probe_get_fixup_type(u16 *insn)
break;
case 0xec:
switch (insn[2] & 0xff) {
+ case 0xe4: /* cgrb */
case 0xe5: /* clgrb */
- case 0xe6: /* cgrb */
case 0xf6: /* crb */
case 0xf7: /* clrb */
case 0xfc: /* cgib */
--
2.53.0
next prev parent reply other threads:[~2026-10-12 8:36 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-10-12 8:36 [PATCH 0/3] s390/probes: Various fixes Heiko Carstens
2026-10-12 8:36 ` Heiko Carstens [this message]
2026-10-12 8:36 ` [PATCH 2/3] s390/probes: Add missing fixup for bctgr and bic Heiko Carstens
2026-10-12 8:36 ` [PATCH 3/3] s390/probes: Fix wrong mnemonic comment for clgib Heiko Carstens
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20261012083629.2109206-2-hca@linux.ibm.com \
--to=hca@linux.ibm.com \
--cc=agordeev@linux.ibm.com \
--cc=borntraeger@linux.ibm.com \
--cc=gor@linux.ibm.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-s390@vger.kernel.org \
--cc=svens@linux.ibm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
all inboxes | Powered by JetHome®